Compared with mechanical engineering, inventions in the fields of electrical engineering and electronics are more complex. It is advisable in some cases to have different aspects, such as a circuit, protected via separate patent applications. Alternatively, a number of "inventions" may first be assembled in one patent application at first, thus reducing costs, with the option of later filing divisional applications in order to acquire necessary or recommendable separate protection.

Functional wording of the patent claims will serve to keep competitors out of the market. Here it is essential to always bear in mind the latest Decisions of German and European jurisdiction when working out patent applications.